Priority Program "Co-Financing Of Projects Implemented Under The European Funds For Infrastructure, Climate, Environment 2021-2027 (Feniks) Program, Part 4) Heating/Cooling Network - Effective Heating System" For The Project: Increasing Energy Efficiency And Reliability Of Heat Transmission And Distribution By Eliminating Group Heat Exchangers, Intended For Co-Financing From European Union Funds From The European Regional Development Fund (Erdf) (Hereinafter Referred To As The "Feniks Programme").